The best elf primer for you depends on your specific skin type and concerns. For example, if you have dry skin, a hydrating primer might be the best choice, while if you have oily skin, a mattifying primer would be more appropriate. It's also important to consider your desired look - if you want a natural look, a sheer primer might be ideal, while if you want to create a more dramatic look, a fuller coverage primer would be better. Ultimately, the best primer for you is one that addresses your unique skin type and concerns.